Home / 21,205,004.40-31,807,506.60-14,486,540.40

Finding the Fourth Proportional to 21,205,004.40, 31,807,506.60 and 14,486,540.40

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Solution

The fourth proportional to 21,205,004.40, 31,807,506.60 and 14,486,540.40 is: 21,729,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,004.40 : 31,807,506.60 = 14,486,540.40 : x
  2. Step 2: Convert to fraction form
    21,205,004.40/31,807,506.60 = 14,486,540.40/x
  3. Step 3: Cross multiply
    21,205,004.40x = 31,807,506.60 × 14,486,540.40
  4. Step 4: Simplify right side
    21,205,004.40x = 460,780,729,384,166.69
  5. Step 5: Solve for x
    x = 460,780,729,384,166.69/21,205,004.40
  6. Step 6: Final answer
    x = 21,729,810.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.